SAO PAULO, Sept 13 (Reuters) - Brazilian retailer Casas Bahia raised 622 million reais ($126.53 million) in a share offering, the minutes of a board meeting showed on Thursday.

Casas Bahia, formerly known as Via, priced its offering at 0.80 reais per share, a discount of nearly 28% from its Wednesday closing price.

The firm also approved the issue of four stock warrants as a bonus for every five shares acquired in the offer, the company said.

($1 = 4.9158 reais) (Reporting by Peter Frontini and Carolina Pulice; Editing by Steven Grattan)